cloud-initramfs-tools-0.25ubuntu1/0000775000000000000000000000000012314372326014115 5ustar cloud-initramfs-tools-0.25ubuntu1/copymods/0000775000000000000000000000000012314372326015752 5ustar cloud-initramfs-tools-0.25ubuntu1/copymods/scripts/0000775000000000000000000000000012314372326017441 5ustar cloud-initramfs-tools-0.25ubuntu1/copymods/scripts/init-bottom/0000775000000000000000000000000012314372326021706 5ustar cloud-initramfs-tools-0.25ubuntu1/copymods/scripts/init-bottom/copymods0000664000000000000000000000402012314371260023456 0ustar #!/bin/sh # Copyright, 2014 Scott Moser # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see # . prereqs() { local o="/scripts/init-bottom/overlayroot" p="" for p in "$DESTDIR/" ""; do [ -e "$p$o" ] && echo "overlayroot" && return 0 done } [ "$1" != "prereqs" ] || { prereqs; exit; } . /scripts/functions set -f PATH=/usr/sbin:/usr/bin:/sbin:/bin cmdline="" myopts="" if [ -f /proc/cmdline ]; then read cmdline < /proc/cmdline for tok in cmdline; do [ "${tok#copymods=}" != "$tok" ] || continue myopts="${tok#copymods=}" done fi myver=$(uname -r) if [ ! -d "/lib/modules/$myver" ]; then log_warning_msg "Something odd, no /lib/modules/$myver." exit 0 fi [ -d "$rootmnt/lib/modules" ] || mkdir -p "$rootmnt/lib/modules" || { log_warning_msg "No /lib/modules in target. cannot help."; exit 0; } if [ -d "$rootmnt/lib/modules/$myver" ]; then if [ "${myopts#*force}" = "$myopts" ]; then log_warning_msg "Modules existed for $myver in target. use copymods=force." exit 0 else log_warning_msg "copying over existing modules! due to copymods=force" fi fi mount -t tmpfs copymods "$rootmnt/lib/modules" || { log_failure_msg "failed mount of tmpfs"; exit 0; } mv "/lib/modules/$myver" "$rootmnt/lib/modules" || { log_failure_msg "failed to copy modules to target root"; exit 0; } ln -s "$rootmnt/lib/modules" "/lib/modules/$myver" || { log_failure_msg "failed to link to modules"; exit 0; } # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/copymods/hooks/0000775000000000000000000000000012314372326017075 5ustar cloud-initramfs-tools-0.25ubuntu1/copymods/hooks/copymods0000664000000000000000000000043012314371260020646 0ustar #!/bin/sh set -e prereqs() { local o="/scripts/init-bottom/overlayroot" p="" for p in "$DESTDIR/" ""; do [ -e "$p$o" ] && echo "overlayroot" && return 0 done } [ "$1" = "prereqs" ] && { prereqs; exit; } . /usr/share/initramfs-tools/hook-functions # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/growroot/0000775000000000000000000000000012314372326015777 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/0000775000000000000000000000000012314372326017261 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/modules.d/0000775000000000000000000000000012314372326021153 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/modules.d/50growroot/0000775000000000000000000000000012314372326023202 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/modules.d/50growroot/module-setup.sh0000775000000000000000000000035512204437314026164 0ustar #!/bin/bash check() { return 0 } depends() { return 0 } install() { inst_hook pre-pivot 00 "$moddir/growroot.sh" dracut_install awk dracut_install growpart dracut_install sfdisk dracut_install sgdisk } # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/modules.d/50growroot/growroot.sh0000775000000000000000000000542112204437314025422 0ustar #!/bin/sh # Environment variables that this script relies upon: # - NEWROOT . /lib/dracut-lib.sh _info() { echo "growroot: $*" } _warning() { echo "growroot Warning: $*" >&2 } # This will drop us into an emergency shell _fatal() { echo "growroot Fatal: $*" >&2 exit 1 } # This runs right before exec of /sbin/init, the real root is already mounted # at NEWROOT _growroot() { local out rootdev rootmnt rootfs opts unused rootdisk partnum # If a file indicates we should do nothing, then just return for file in /var/lib/cloud/instance/root-grown /etc/growroot-disabled \ /etc/growroot-grown ; do if [ -f "${NEWROOT}${file}" ] ; then _info "${file} exists, nothing to do" return fi done # Get the root device, root filesystem and mount options if ! out=$(awk '$2 == mt { print }' "mt=${NEWROOT}" < /proc/mounts) ; then _warning "${out}" return fi # Need to do it this way, can't use '<<< "${out}"' since RHEL6 doesn't # seem to understand it read rootdev rootmnt rootfs opts unused <&1) ; then _info "${out}" else _warning "${out}" _warning "growpart failed" fi # Wait for the partition re-read events to complete so that the root # partition is available for remounting udevsettle # Remount the root filesystem mount -t "${rootfs}" -o "${opts}" "${rootdev}" "${NEWROOT}" || \ _fatal "Failed to re-mount ${rootdev}, this is bad" # Write to /etc/growroot-grown, most likely this wont work (read-only) { date --utc > "${NEWROOT}/etc/growroot-grown" } >/dev/null 2>&1 } _growroot # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/growroot/dracut/modules.d/50growroot/install0000775000000000000000000000017412204437314024575 0ustar #!/bin/bash inst_hook pre-pivot 00 "$moddir/growroot.sh" dracut_install awk dracut_install growpart dracut_install sfdisk cloud-initramfs-tools-0.25ubuntu1/growroot/scripts/0000775000000000000000000000000012314372326017466 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/scripts/local-bottom/0000775000000000000000000000000012314372326022062 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/scripts/local-bottom/growroot0000664000000000000000000000700412263306604023667 0ustar #!/bin/sh set -e PREREQS="" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac . /scripts/functions msg() { echo "GROWROOT:" "$@" ; } fail() { [ $# -eq 0 ] || msg "$@"; exit 1; } ### ### This runs right before exec of /sbin/init. The real root is ### already mounted at rootmnt ### TEMP_D="" RESTORE_FROM="" # if a file indicates we should do nothing, then just exit for f in /var/lib/cloud/instance/root-grown /etc/growroot-disabled \ /etc/growroot-grown; do [ -f "${rootmnt}$f" ] && exit 0 done # figure out what disk ROOT is on { [ ! -L "${ROOT}" ] && rootdev=${ROOT} || rootdev=$(readlink -f "${ROOT}") ; } || fail "failed to get target of link for ${ROOT}" case "${rootdev}" in *[0-9]) : ;; # the root is a disk, not a partition (does not end in a digit) # no need to do anything in this case, kernel already knows the full size. *) exit 0;; esac # remove all consective numbers from the end of rootdev to get 'rootdisk' rootdisk=${rootdev} while [ "${rootdisk%[0-9]}" != "${rootdisk}" ]; do rootdisk=${rootdisk%[0-9]}; done partnum=${rootdev#${rootdisk}} # account for devnameNpP devices (like mmcblk0p1). if [ "${rootdisk%[0-9]p}" != "${rootdisk}" ] && [ -b "${rootdisk%p}" ]; then rootdisk="${rootdisk%p}" fi # if the basename of the root device (ie 'xvda1' or 'sda1') exists # in /sys/block/ then it is a block device, not a partition # (xen xvda1 is an example of such a funny named block device) [ -e "/sys/block/${rootdev##*/}" ] && exit 0 # if growpart fails, exit. # we capture stderr because on success of dry-run, it writes # to stderr what it would do. out=$(growpart --dry-run "${rootdisk}" "${partnum}" 2>&1) ret=$? # if growpart would change something, --dry-run will write something like # CHANGE: partition=1 start=2048 old: size=1024000 end=1026048 new: size=2089192,end=2091240 # newer versions of growpart will exit # 0: with 'CHANGE:*' in output on changed # 1: with 'NOCHANGE:*' in output on no-change-necessary # 2: error occurred # older versions of growpart would exit '1' on all failure scenarios # or with 'no-change-necessary' case "$ret:$out" in 0:CHANGE:*) :;; [01]:NOCHANGE:*) exit 0;; *) msg "exited '$ret'" "${out}"; exit 1;; esac # There was something to do, unmount and resize umount "${rootmnt}" || fail "failed to umount ${rootmnt}"; # Wait for any of the initial udev events to finish # This is to avoid any other processes using the block device that the # root partition is on, which would cause the sfdisk 'BLKRRPART' to fail. udevadm settle --timeout ${ROOTDELAY:-30} || error "GROWROOT: WARNING: udevadm settle prior to growpart failed" if out=$(growpart "${rootdisk}" "${partnum}" 2>&1); then case "$out" in CHANGED:*) echo "GROWROOT: $out";; NOCHANGE:*) echo "GROWROOT: WARNING: expected to grow partition, but did not";; *) echo "GROWROOT: unexpected output: ${out}" esac else echo "GROWROOT: WARNING: resize failed: $out" fi # Wait for the partition re-read events to complete # so that the root partition is available when we try and mount it. udevadm settle --timeout ${ROOTDELAY:-30} # this is taken from 'mountroot' function # see /usr/share/initramfs-tools/scripts/local FSTYPE=$(wait-for-root "${ROOT}" ${ROOTDELAY:-30}) roflag="-r" [ "${readonly}" = "y" ] || roflag="-w" mount ${roflag} ${FSTYPE:+-t ${FSTYPE} }${ROOTFLAGS} ${ROOT} ${rootmnt} || fail "failed to re-mount ${ROOT}. this is bad!" # write to /etc/grownroot-grown. most likely this wont work (readonly) { date --utc > "${rootmnt}/etc/growroot-grown" ; } >/dev/null 2>&1 || : # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/growroot/hooks/0000775000000000000000000000000012314372326017122 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/hooks/growroot0000664000000000000000000000037412204437314020730 0ustar #!/bin/sh set -e PREREQS="" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac . /usr/share/initramfs-tools/hook-functions ## copy_exec /sbin/sfdisk /sbin copy_exec /usr/bin/growpart /sbin copy_exec /sbin/udevadm /sbin # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/growroot/doc/0000775000000000000000000000000012314372326016544 5ustar cloud-initramfs-tools-0.25ubuntu1/growroot/doc/example.txt0000664000000000000000000001017412204437314020740 0ustar On a Eucalyptus kvm instance, I did the following to demonstrate function. - launch instance - show original partition table: $ sudo sfdisk -G /dev/sda /dev/sda: 164288 cylinders, 4 heads, 32 sectors/track $ CHS=$(sudo sfdisk -G /dev/sda | awk '{print "-C",$2,"-H",$4,"-S",$6}') $ sudo sfdisk -uS ${CHS} /dev/sda -d # partition table of /dev/sda unit: sectors /dev/sda1 : start= 63, size= 2883585, Id=83 /dev/sda2 : start= 2883648, size= 16558001, Id=83 /dev/sda3 : start= 19441649, size= 1587215, Id=82 /dev/sda4 : start= 0, size= 0, Id= 0 $ df -h /dev/sda1 /dev/sda2 Filesystem Size Used Avail Use% Mounted on /dev/sda1 1.4G 581M 735M 45% / /dev/sda2 7.8G 52K 7.4G 1% /mnt - now, modify the partition table This will destroy the filesystem on /dev/sda2 as we move it. A reboot will get the new partition and not see a filesystem on /dev/sda2 $ cat > rewrite.txt < console.out $ grep GROW console.out GROWROOT: CHANGED: partition=1 start=63 old: size=2883585 end=2883648 new: size=9999937,end=10000000 And, on the instance, you can see that the partition table has been updated and that / partition has been resized by cloud-init. $ sudo sfdisk -uS ${CHS} /dev/sda -d # partition table of /dev/sda unit: sectors /dev/sda1 : start= 63, size= 9999937, Id=83 /dev/sda2 : start= 10000000, size= 9441649, Id=83 /dev/sda3 : start= 19441649, size= 1587215, Id=82 /dev/sda4 : start= 0, size= 0, Id= 0 $ df -h /dev/sda1 /dev/sda2 Filesystem Size Used Avail Use% Mounted on /dev/sda1 4.7G 582M 3.9G 13% / /dev/sda2 4.5G 143M 4.1G 4% /mnt cloud-initramfs-tools-0.25ubuntu1/COPYING0000664000000000000000000010437412204437314015156 0ustar GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. Preamble The GNU General Public License is a free, copyleft license for software and other kinds of works. The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too. When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things. To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others. For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights. Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it. For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions. Some devices are designed to deny users access to install or run modified versions of the software inside them, although the manufacturer can do so. This is fundamentally incompatible with the aim of protecting users' freedom to change the software. The systematic pattern of such abuse occurs in the area of products for individuals to use, which is precisely where it is most unacceptable. Therefore, we have designed this version of the GPL to prohibit the practice for those products. If such problems arise substantially in other domains, we stand ready to extend this provision to those domains in future versions of the GPL, as needed to protect the freedom of users. Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free. The precise terms and conditions for copying, distribution and modification follow. TERMS AND CONDITIONS 0. Definitions. "This License" refers to version 3 of the GNU General Public License. "Copyright" also means copyright-like laws that apply to other kinds of works, such as semiconductor masks. "The Program" refers to any copyrightable work licensed under this License. Each licensee is addressed as "you". "Licensees" and "recipients" may be individuals or organizations. To "modify" a work means to copy from or adapt all or part of the work in a fashion requiring copyright permission, other than the making of an exact copy. The resulting work is called a "modified version" of the earlier work or a work "based on" the earlier work. A "covered work" means either the unmodified Program or a work based on the Program. To "propagate" a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well. To "convey" a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying. An interactive user interface displays "Appropriate Legal Notices" to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion. 1. Source Code. The "source code" for a work means the preferred form of the work for making modifications to it. "Object code" means any non-source form of a work. A "Standard Interface" means an interface that either is an official standard defined by a recognized standards body, or, in the case of interfaces specified for a particular programming language, one that is widely used among developers working in that language. The "System Libraries" of an executable work include anything, other than the work as a whole, that (a) is included in the normal form of packaging a Major Component, but which is not part of that Major Component, and (b) serves only to enable use of the work with that Major Component, or to implement a Standard Interface for which an implementation is available to the public in source code form. A "Major Component", in this context, means a major essential component (kernel, window system, and so on) of the specific operating system (if any) on which the executable work runs, or a compiler used to produce the work, or an object code interpreter used to run it. The "Corresponding Source" for a work in object code form means all the source code needed to generate, install, and (for an executable work) run the object code and to modify the work, including scripts to control those activities. However, it does not include the work's System Libraries, or general-purpose tools or generally available free programs which are used unmodified in performing those activities but which are not part of the work. For example, Corresponding Source includes interface definition files associated with source files for the work, and the source code for shared libraries and dynamically linked subprograms that the work is specifically designed to require, such as by intimate data communication or control flow between those subprograms and other parts of the work. The Corresponding Source need not include anything that users can regenerate automatically from other parts of the Corresponding Source. The Corresponding Source for a work in source code form is that same work. 2. Basic Permissions. All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law. You may make, run and propagate covered works that you do not convey, without conditions so long as your license otherwise remains in force. You may convey covered works to others for the sole purpose of having them make modifications exclusively for you, or provide you with facilities for running those works, provided that you comply with the terms of this License in conveying all material for which you do not control copyright. Those thus making or running the covered works for you must do so exclusively on your behalf, under your direction and control, on terms that prohibit them from making any copies of your copyrighted material outside their relationship with you. Conveying under any other circumstances is permitted solely under the conditions stated below. Sublicensing is not allowed; section 10 makes it unnecessary. 3. Protecting Users' Legal Rights From Anti-Circumvention Law. No covered work shall be deemed part of an effective technological measure under any applicable law fulfilling obligations under article 11 of the WIPO copyright treaty adopted on 20 December 1996, or similar laws prohibiting or restricting circumvention of such measures. When you convey a covered work, you waive any legal power to forbid circumvention of technological measures to the extent such circumvention is effected by exercising rights under this License with respect to the covered work, and you disclaim any intention to limit operation or modification of the work as a means of enforcing, against the work's users, your or third parties' legal rights to forbid circumvention of technological measures. 4. Conveying Verbatim Copies. You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program. You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee. 5. Conveying Modified Source Versions. You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions: a) The work must carry prominent notices stating that you modified it, and giving a relevant date. b) The work must carry prominent notices stating that it is released under this License and any conditions added under section 7. This requirement modifies the requirement in section 4 to "keep intact all notices". c) You must license the entire work, as a whole, under this License to anyone who comes into possession of a copy. This License will therefore apply, along with any applicable section 7 additional terms, to the whole of the work, and all its parts, regardless of how they are packaged. This License gives no permission to license the work in any other way, but it does not invalidate such permission if you have separately received it. d) If the work has interactive user interfaces, each must display Appropriate Legal Notices; however, if the Program has interactive interfaces that do not display Appropriate Legal Notices, your work need not make them do so. A compilation of a covered work with other separate and independent works, which are not by their nature extensions of the covered work, and which are not combined with it such as to form a larger program, in or on a volume of a storage or distribution medium, is called an "aggregate" if the compilation and its resulting copyright are not used to limit the access or legal rights of the compilation's users beyond what the individual works permit. Inclusion of a covered work in an aggregate does not cause this License to apply to the other parts of the aggregate. 6. Conveying Non-Source Forms. You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways: a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange. b) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by a written offer, valid for at least three years and valid for as long as you offer spare parts or customer support for that product model, to give anyone who possesses the object code either (1) a copy of the Corresponding Source for all the software in the product that is covered by this License, on a durable physical medium customarily used for software interchange, for a price no more than your reasonable cost of physically performing this conveying of source, or (2) access to copy the Corresponding Source from a network server at no charge. c) Convey individual copies of the object code with a copy of the written offer to provide the Corresponding Source. This alternative is allowed only occasionally and noncommercially, and only if you received the object code with such an offer, in accord with subsection 6b. d) Convey the object code by offering access from a designated place (gratis or for a charge), and offer equivalent access to the Corresponding Source in the same way through the same place at no further charge. You need not require recipients to copy the Corresponding Source along with the object code. If the place to copy the object code is a network server, the Corresponding Source may be on a different server (operated by you or a third party) that supports equivalent copying facilities, provided you maintain clear directions next to the object code saying where to find the Corresponding Source. Regardless of what server hosts the Corresponding Source, you remain obligated to ensure that it is available for as long as needed to satisfy these requirements. e) Convey the object code using peer-to-peer transmission, provided you inform other peers where the object code and Corresponding Source of the work are being offered to the general public at no charge under subsection 6d. A separable portion of the object code, whose source code is excluded from the Corresponding Source as a System Library, need not be included in conveying the object code work. A "User Product" is either (1) a "consumer product", which means any tangible personal property which is normally used for personal, family, or household purposes, or (2) anything designed or sold for incorporation into a dwelling. In determining whether a product is a consumer product, doubtful cases shall be resolved in favor of coverage. For a particular product received by a particular user, "normally used" refers to a typical or common use of that class of product, regardless of the status of the particular user or of the way in which the particular user actually uses, or expects or is expected to use, the product. A product is a consumer product regardless of whether the product has substantial commercial, industrial or non-consumer uses, unless such uses represent the only significant mode of use of the product. "Installation Information" for a User Product means any methods, procedures, authorization keys, or other information required to install and execute modified versions of a covered work in that User Product from a modified version of its Corresponding Source. The information must suffice to ensure that the continued functioning of the modified object code is in no case prevented or interfered with solely because modification has been made. If you convey an object code work under this section in, or with, or specifically for use in, a User Product, and the conveying occurs as part of a transaction in which the right of possession and use of the User Product is transferred to the recipient in perpetuity or for a fixed term (regardless of how the transaction is characterized), the Corresponding Source conveyed under this section must be accompanied by the Installation Information. But this requirement does not apply if neither you nor any third party retains the ability to install modified object code on the User Product (for example, the work has been installed in ROM). The requirement to provide Installation Information does not include a requirement to continue to provide support service, warranty, or updates for a work that has been modified or installed by the recipient, or for the User Product in which it has been modified or installed. Access to a network may be denied when the modification itself materially and adversely affects the operation of the network or violates the rules and protocols for communication across the network. Corresponding Source conveyed, and Installation Information provided, in accord with this section must be in a format that is publicly documented (and with an implementation available to the public in source code form), and must require no special password or key for unpacking, reading or copying. 7. Additional Terms. "Additional permissions" are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions. When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission. Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms: a) Disclaiming warranty or limiting liability differently from the terms of sections 15 and 16 of this License; or b) Requiring preservation of specified reasonable legal notices or author attributions in that material or in the Appropriate Legal Notices displayed by works containing it; or c) Prohibiting misrepresentation of the origin of that material, or requiring that modified versions of such material be marked in reasonable ways as different from the original version; or d) Limiting the use for publicity purposes of names of licensors or authors of the material; or e) Declining to grant rights under trademark law for use of some trade names, trademarks, or service marks; or f) Requiring indemnification of licensors and authors of that material by anyone who conveys the material (or modified versions of it) with contractual assumptions of liability to the recipient, for any liability that these contractual assumptions directly impose on those licensors and authors. All other non-permissive additional terms are considered "further restrictions" within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying. If you add terms to a covered work in accord with this section, you must place, in the relevant source files, a statement of the additional terms that apply to those files, or a notice indicating where to find the applicable terms. Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way. 8. Termination. You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11). However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation. Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice. Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10. 9. Acceptance Not Required for Having Copies. You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so. 10. Automatic Licensing of Downstream Recipients. Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License. An "entity transaction" is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts. You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it. 11. Patents. A "contributor" is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's "contributor version". A contributor's "essential patent claims" are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, "control" includes the right to grant patent sublicenses in a manner consistent with the requirements of this License. Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version. In the following three paragraphs, a "patent license" is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To "grant" such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party. If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. "Knowingly relying" means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid. If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it. A patent license is "discriminatory" if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007. Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law. 12. No Surrender of Others' Freedom. If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program. 13. Use with the GNU Affero General Public License. Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such. 14. Revised Versions of this License. The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns. Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation. If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program. Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version. 15. Disclaimer of Warranty. THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 16. Limitation of Liability. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. 17. Interpretation of Sections 15 and 16. If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee. END OF TERMS AND CONDITIONS How to Apply These Terms to Your New Programs If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms. To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found. Copyright (C) This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . Also add information on how to contact you by electronic and paper mail. If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode: Copyright (C) This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details. The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an "about box". You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see . The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read . cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/0000775000000000000000000000000012314372326016341 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/scripts/0000775000000000000000000000000012314372326020030 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/scripts/init-premount/0000775000000000000000000000000012314372326022642 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/scripts/init-premount/cloud-initramfs-dyn-netconf0000664000000000000000000000667712204437314030124 0ustar #!/bin/sh set -e set -f PREREQS="udev" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac . /scripts/functions PATH=/usr/sbin:/usr/bin:/sbin:/bin error() { echo "${0##*/}:" "$@" 1>&2; } fail() { [ $# -eq 0 ] || error "$@"; exit 0; } ## this function ins taken and cleaned from configure_networking find_nic_by_mac() { # look for devices with matching mac address, and set DEVICE to # appropriate value if match is found. local mac="$1" curmac="" device="" found="" set +f for device in /sys/class/net/* ; do [ -f "$device/address" ] || continue read curmac < "$device/address" || continue [ "$curmac" = "$mac" ] && found="${device##*/}" && break done set -f [ -n "$found" ] && _RET=$found && return 0 return 1 } bootif2macaddr() { # bootif is specified as BOOTIF=01-${mac_address} with '-' rather than ':' local input="$1" tok oifs="$IFS" input=${input#??-} IFS="-" _RET="" for tok in $input; do _RET="${_RET}:${tok}" done IFS="$oifs" _RET=${_RET#:} } nic2bootif() { local nic="$1" macaddr="" tok="" oifs="$IFS" [ -f "/sys/class/net/$nic/address" ] || return 1 read macaddr < "/sys/class/net/$nic/address" IFS=":" _RET="01" for tok in $macaddr; do _RET="${_RET}-${tok}" done IFS="$oifs" } read CMDLINE < /proc/cmdline # if BOOTIF_DEFAULT was present on the kernel cmdline, but no BOOTIF was # provided then we set BOOTIF based on the network device *name* in # BOOTIF_DEFAULT (BOOTIF_DEFAULT=eth0). This allows a pxe boot implementation # without the ability or knowledge to specify IPAPPEND to function. bootif_new="" if [ -z "$BOOTIF" ]; then for tok in $CMDLINE; do case "$tok" in BOOTIF_DEFAULT=*) wait_for_udev 10 nic2bootif "${tok#BOOTIF_DEFAULT=}" || { echo "WARNING: ${0##*/}: no device $tok" continue } BOOTIF=${_RET} bootif_new=${BOOTIF} ;; esac done fi # if hostname= is on the cmdline and IP=="dhcp", then change IP to # ::::$hostname:BOOTIF:dhcp # This allows old code that specified 'ip=dhcp' to still convince ipconfig to # use a given hostname in dhcp request without requiring '::::$hostname:'. # The '::::$hostname:' without a device name means "wait for all network # devices". If some are not plugged in, then it will hang for quite some time. # # This is really a specific kludge to deal with newer maas needing to operating # with existing original images from 12.04. Those images were not able to # accept 'ip::::$hostname:BOOTIF' as they did not have this package installed. if [ -n "$BOOTIF" -a "$IP" = "dhcp" ]; then for tok in $CMDLINE; do case "$tok" in hostname=*) IP="::::${tok#hostname=}:BOOTIF:dhcp" esac done fi # no IP or IP not containing BOOTIF means nothing to do case $IP in *BOOTIF*) :;; *) exit 0 esac [ -n "$BOOTIF" ] || fail "WARNING: IP='$IP' but no BOOTIF set!" ## we need to "fix" an IP= string that contains 'BOOTIF' ## to instead reference the actual interface. wait_for_udev 10 bootif2macaddr "$BOOTIF" && [ -n "$_RET" ] || fail "failed to convert BOOTIF='$BOOTIF'"; macaddr=${_RET} find_nic_by_mac "$macaddr" && [ -n "$_RET" ] || fail "did no find a nic with $macaddr" devname=${_RET} # now replace occurences of BOOTIF in $IP with $devname cur="$IP" while [ "${cur#*BOOTIF}" != "$cur" ]; do cur="${cur%%BOOTIF*}$devname${cur#*BOOTIF}" done new=$cur # get the global variables IP and BOOTIF reset with updated values { echo "IP='$new'" [ -z "$bootif_new" ] || echo "BOOTIF='${bootif_new}'" } > /conf/param.conf # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/scripts/init-bottom/0000775000000000000000000000000012314372326022275 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/scripts/init-bottom/cloud-initramfs-dyn-netconf0000664000000000000000000000435212204437314027543 0ustar #!/bin/sh set -e PREREQS="" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac . /scripts/functions PATH=/usr/sbin:/usr/bin:/sbin:/bin # doc in klibc-utils /usr/share/doc/libklibc/README.ipconfig.gz # example below: #DEVICE='eth0' #PROTO='dhcp' ## none, off, static. not present in precise #IPV4ADDR='192.168.122.89' #IPV4BROADCAST='192.168.122.255' #IPV4NETMASK='255.255.255.0' #IPV4GATEWAY='192.168.122.1' #IPV4DNS0='192.168.122.1' ## only come from dhcp #IPV4DNS1='0.0.0.0' #HOSTNAME='' #DNSDOMAIN='' #NISDOMAIN='' #ROOTSERVER='192.168.122.1' #ROOTPATH='' #filename='' #UPTIME='21' #DHCPLEASETIME='3600' #DOMAINSEARCH='' error() { echo "${0##*/}:" "$@" 1>&2; } tmpf="/tmp/${0##*/}.ni" { echo "## This file is generated by cloud-initramfs-dyn-netconf" echo "auto lo" echo "iface lo inet loopback" } > "$tmpf" seen="," for f in /run/net-*.conf /tmp/net-*.conf; do [ -f "$f" ] || continue dev=${f#*/net-}; dev=${dev%.conf}; # perhaps we saw this device from /run and now we're in /tmp [ "${seen#*,${dev},}" = "${seen}" ] || continue seen="${seen}${dev}," DEVICE=""; PROTO=""; IPV4ADDR=""; IPV4NETMASK=""; IPV4GATEWAY=""; IPV4DNS0=""; IPV4DNS1=""; DNSDOMAIN=""; DOMAINSEARCH=""; filename=""; . "$f" if [ -z "$DEVICE" ]; then error "WARNING: $f had no 'DEVICE' set" continue fi # ipconfig on precise does not write PROTO. if [ -z "$PROTO" ]; then if [ -n "$filename" ]; then PROTO="dhcp" else PROTO="static" fi fi echo "manual $DEVICE" if [ "$PROTO" = "dhcp" ]; then echo "iface $DEVICE inet dhcp" elif [ "$PROTO" = "static" ]; then echo "iface $DEVICE inet static" [ -n "$IPV4ADDR" ] && printf "\t%s\n" "address $IPV4ADDR" [ -n "$IPV4NETMASK" ] && printf "\t%s\n" "netmask $IPV4NETMASK" [ -n "$IPV4GATEWAY" ] && printf "\t%s\n" "gateway $IPV4GATEWAY" fi if [ -n "$IPV4DNS0" -a "$IPV4DNS0" != "0.0.0.0" ]; then nsline="dns-nameservers ${IPV4DNS0}" [ -n "$IPV4DNS1" -a "$IPV4DNS1" != "0.0.0.0" ] && nsline="${nsline} ${IPV4DNS1}" printf "\t%s\n" "$nsline" fi [ -n "$DNSDOMAIN" -o -n "$DOMAINSEARCH" ] && printf "\t%s\n" "dns-search ${DNSDOMAIN} ${DOMAINSEARCH}" done >> "$tmpf" [ -d /run/network ] || mkdir /run/network mv "$tmpf" /run/network/dynamic-interfaces # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/hooks/0000775000000000000000000000000012314372326017464 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/hooks/cloud-initramfs-dyn-netconf0000664000000000000000000000016612204437314024731 0ustar #!/bin/sh set -e PREREQS="" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/doc/0000775000000000000000000000000012314372326017106 5ustar cloud-initramfs-tools-0.25ubuntu1/dyn-netconf/doc/README.txt0000664000000000000000000000433412204437314020605 0ustar This initramfs module does 2 things: * writes a file /run/network/dynamic-interfaces based on interfaces that were brought up during initramfs. * allows 'ip=' parameters on the command line to contain 'BOOTIF' == /run/network/dynamic-interfaces == When network devices are brought up in the initramfs, klibc's ipconfig tool writes files are named /run/net-.conf. Their format is described in /usr/share/doc/libklibc/README.ipconfig.gz. This module translates those files to a interfaces(5) style file and writes that to /run/network/dynamic-interfaces. Each configured device is set to 'manual'. It writes 'dns-nameservers' and 'dns-search' entries as supported by resolvconf(8). The end result of this is that if you were only interested in interfaces configured in the initramfs, you could have /etc/network/interfaces be a symlink to /run/network/dynamic-interfaces. Then, the static-networking event will fire correctly as all configured network devices will already be up, and configured network interfaces will not be "bounced". This is how the maas ephemeral images function in 12.04 and 12.10. These images are used to netboot to a read-only from iscsi root device. === 'ip=' and BOOTIF manipulation === When executed in the initramfs, the code in 'init-top/cloud-initramfs-dyn-netconf' will modify the global 'IP' and 'BOOTIF' variables according to the following rules: * if BOOTIF_DEFAULT= is provided on the command line, but BOOTIF is not present, then BOOTIF will be set appropriately as if it were specified on the kernel command line with the MAC address of the device named 'name'. Example: BOOTIF_DEFAULT=eth0 will set the value of BOOTIF to be: BOOTIF=01-00-22-68-10-c1-e6 Code that executes later in the initramfs will simply behave as if BOOTIF were on the command line initially. * if the literal string 'BOOTIF' appears inside the value of 'IP' (which is set from kernel command line parameter 'ip=...'), then it will be replaced with the device name that maps to the mac address specified in BOOTIF. Example: ip=::::foobar:BOOTIF BOOTIF=01-00-22-68-10-c1-e6 will be effectively rendered as: ip=::::foobar:eth0 before configure_networking would be run cloud-initramfs-tools-0.25ubuntu1/overlayroot/0000775000000000000000000000000012314372326016502 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/0000775000000000000000000000000012314372326017313 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/share/0000775000000000000000000000000012314372326020415 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/share/man/0000775000000000000000000000000012314372326021170 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/share/man/man8/0000775000000000000000000000000012314372326022033 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/share/man/man8/overlayroot-chroot.80000664000000000000000000000216612204437314026007 0ustar .TH overlayroot-chroot 8 "20 July 2012" overlayroot-chroot "initramfs-tools-overlayroot" .SH NAME \fBoverlayroot-chroot\fP - chroot into the lower filesystem in a writable mode .SH SYNOPSIS \fBoverlayroot-chroot\fP [COMMAND [ARG]...] .SH DESCRIPTION \fBoverlayroot-chroot\fP is a program that sets up bind mounts for \fI/proc\fP, \fI/run\fP, and \fI/sys\fP, remounts the lower directory in an overlayfs with write capabilities and will \fBchroot\fP(8) into it. Upon exit, the bind mounts are unmounted. Any [COMMAND [ARG]...] are passed directly through to \fBchroot\fP(8). .SH SEE ALSO .TP \fBchroot\fP(8) .PD .SH AUTHOR This manpage and the utility were written by Dustin Kirkland for Ubuntu systems (but may be used by others). Permission is granted to copy, distribute and/or modify this document and the utility under the terms of the GNU General Public License, Version 3 published by the Free Software Foundation. The complete text of the GNU General Public License can be found in \fI/usr/share/common-licenses/GPL\fP on Debian/Ubuntu systems, or on the web at \fIhttp://www.gnu.org/licenses/gpl.txt\fP. cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/sbin/0000775000000000000000000000000012314372326020246 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/usr/sbin/overlayroot-chroot0000775000000000000000000000467012204437314024061 0ustar #!/bin/sh # # overlayroot-chroot - chroot wrapper script for overlayroot # Copyright (C) 2012 Dustin Kirkland # # Authors: Dustin Kirkland # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, version 3 of the License. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . set -e set -f # disable path expansion REMOUNTS="" error() { printf "ERROR: $@\n" 1>&2 } fail() { [ $# -eq 0 ] || error "$@"; exit 1; } info() { printf "INFO: $@\n" 1>&2 } get_lowerdir() { overlay=$(grep -m1 "^overlayroot / overlayfs " /proc/mounts) || overlay= if [ -n "${overlay}" ]; then lowerdir=${overlay##*lowerdir=} lowerdir=${lowerdir%%,*} if mountpoint "${lowerdir}" >/dev/null; then _RET="${lowerdir}" else fail "Unable to find the overlayroot lowerdir" fi else fail "Unable to find an overlayroot filesystem" fi } clean_exit() { local mounts="$1" rc=0 d="" lowerdir="" mp="" for d in ${mounts}; do if mountpoint ${d} >/dev/null; then umount ${d} || rc=1 fi done for mp in $REMOUNTS; do mount -o remount,ro "${mp}" || error "Note that [${mp}] is still mounted read/write" done [ "$2" = "return" ] && return ${rc} || exit ${rc} } # Try to find the overlayroot filesystem get_lowerdir lowerdir=${_RET} recurse_mps=$(awk '$1 ~ /^\/dev\// && $2 ~ starts { print $2 }' \ starts="^$lowerdir/" /proc/mounts) mounts= for d in proc run sys; do if ! mountpoint "${lowerdir}/${d}" >/dev/null; then mount -o bind "/${d}" "${lowerdir}/${d}" || fail "Unable to bind /${d}" mounts="$mounts $lowerdir/$d" trap "clean_exit \"${mounts}\" || true" EXIT HUP INT QUIT TERM fi done # Remount with read/write for mp in "$lowerdir" $recurse_mps; do mount -o remount,rw "${mp}" && REMOUNTS="$mp $REMOUNTS" || fail "Unable to remount [$mp] writable" done info "Chrooting into [${lowerdir}]" chroot ${lowerdir} "$@" # Clean up mounts on exit clean_exit "${mounts}" "return" trap "" EXIT HUP INT QUIT TERM # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/overlayroot/etc/0000775000000000000000000000000012314372326017255 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/etc/update-motd.d/0000775000000000000000000000000012314372326021722 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/etc/update-motd.d/97-overlayroot0000664000000000000000000000015712263307015024466 0ustar #!/bin/sh (egrep "overlayroot|/media/root-ro|/media/root-rw" /proc/mounts 2>/dev/null | sort -r) || true echo cloud-initramfs-tools-0.25ubuntu1/overlayroot/etc/overlayroot.conf0000664000000000000000000001470312204437314022513 0ustar # This is the overlayroot config file # By default, overlayroot is not enabled. # To enable overlayroot: # 1) edit the 'overlayroot' definition below # 2) reboot # # Supported values: # * overlayroot=tmpfs or overlayroot=tmpfs:PARAMETERS # write all changes to a temporary (ram only) backing device # A tmpfs mount will be created, and usable filesystem can # grow to 1/2 available memory. # # available parameters: # * see COMMON PARAMETERS # # examples: # overlayroot=tmpfs # overlayroot=tmpfs:swap=1 # # * overlayroot=DEVICE or overlayroot=device:PARAMETERS # mount DEVICE as overlayfs and write changes there # device must already have kernel mountalbe filesystem on it. # # available parameters are: # * dev: default: "" [REQUIRED] # use given device for backing filesystem. # Note, 'overlayroot=/dev/vdb' is translated to # 'overlayrooot=device:dev=/dev/vdb' # * timeout: default: 0 # if 'dev' provided does not exist, wait up to many seconds for # it to appear. # * see COMMON PARAMETERS # # examples: # overlayroot=/dev/xvdb # overlayroot=/dev/vdb # overlayroot=device:dev=/dev/sdb,timeout=180 # overlayroot=device:dev=LABEL=my-flashdrive,timeout=180 # # * overlayroot=crypt:PARAMETERS # use an encrypted [dmcrypt] device as the backing device. Parameters # are comma delimited key=value pairs. # # available parameters are: # * dev: default: "" [REQUIRED] # use given device for backing filesystem. # * mapname: default: "secure" # the name of the map device to be created in /dev/mapper # * pass: default: "" # if not provided or empty, password is randomly generated # * fstype: default: "ext4" # mapname=mapper,pass=foo,fstype=ext4,mkfs=1 # * mkfs: default: 1 # 0: never create filesystem # 1: if pass is given and mount fails, create a new one # if no pass given, create new # 2: if pass is given and mount fails, fail # if no pass given, create new # * timeout: default: 0 # if 'dev' provided does not exist, wait up to many seconds for # it to appear. # * see COMMON PARAMETERS # # examples: # crypt:mapname=mapper,pass=foo,fstype=ext4,mkfs=1,dev=vdb # crypt:mapname=mapper,pass=foo,fstype=ext3,mkfs=1,dev=/dev/disk/by-label/my-jumpdrive,timeout=120 # crypt:dev=xvdb # # * overlayroot=disabled # if set explicitly to 'disabled', or an empty string, then # overlayroot will do nothing. # # # COMMON PARAMETERS: # The following parameters are supported for each of overlayroot= # values above. # * swap: default: 0 # allowed values: 0, 1 # indicate if swap partitions should be allowed. By default swap entries # are removed from /etc/fstab to disable swap. # Swap *files* are always disabled, independent of this setting. # # * recurse: default: 1 # allowed values: 0, 1 # indicate if all mounts should be made read-only, or just /. # if set to 1, then all filesystems will be mounted read-only. # if set to 0, only root will be set to read-only, and changes # to other filesystems will be permenant. For example, if # /home is on a separate partition from / and recurse set to 0 # then changes to /home will go through to the original device. # # * debug: default: 0 # allowed values: 0, 1 # enable debug output if set to 1 # # * dir: default: "/overlay" # the directory under the filesystem to use for writes # default is to use top level directory. For example, use # 'dir=my-tests/run1' and later 'dir=my-tests/run2' # # overlayroot_cfgdisk: # * default: 'disabled' # If this variable is set, it references a disk/filesystem that # may exist, and include a 'overlayroot.conf' file in it's root directory # If a such a device exists, then it's overlayroot.conf file can # set overlayroot as above. # # examples: # * overlayroot_cfgdisk="LABEL=OROOTCFG" # * overlayroot_cfgdisk="/dev/vdb" # # Note: if you enable this setting, then you must be careful to be sure # that no filesystems are created that match this without your # knowledge. This is because code on that filesystem is executed # as root in the initramfs environment. # # Notes: # * This file is managed by dpkg as a conffile, so changes to it # will force dpkg config file prompts on package updates that contain a # change. Instead of putting changes here, put them in # /etc/overlayroot.local.conf # * you can pass the same 'overlayroot=' parameters on the kernel # command line, and they will override any values set here. # This includes 'overlayroot=' or 'overlayroot=disabled' to disable # a value set in this file. # * if you specify crypt:dev=/dev/vdb, then DATA WILL BE LOST # on /dev/vdb. A safer value would be to use # crypt:dev=/dev/vdb,pass=somepassword,mkfs=0 # However, you would then have to have previously set up the luks device. # Do that like the following: # $ MAPNAME="secure"; DEV="/dev/vdg"; PASSWORD="foobar" # $ sudo wipefs -a $DEV # $ printf "%s" "$PASSWORD" | # sudo cryptsetup luksFormat "${$DEV}" --key-file - # $ printf "%s" "$PASSWORD" | # sudo cryptsetup luksOpen "${DEV}" "${MAPNAME}" --key-file - # $ sudo mke2fs -t "ext4" "/dev/mapper/${MAPNAME}" # # Security Note: # IT IS INSECURE TO SET THIS PASSWORD HERE IN THIS CLEARTEXT CONFIGURATION # FILE OR ON THE KERNEL COMMAND LINE. # Randomly generated passwords are more secure, but you won't be able to # read your encrypted disk on reboot. # Randomly generated passwords are generated by calculating the sha512sum # of a concatenation of: # - stat -L /dev/* /proc/* /sys/* # + some unpredictability of access/modify times of a number of kernel # files, directories, and block devices # - /proc/sys/kernel/random/boot_id # + 16-bytes uuid, consider this a 'salt' # - /proc/sys/kernel/random/uuid # + 16-bytes uuid, consider this psuedo randomness # - /dev/urandom # + 4096-bytes of psuedo randomness # - $DEV # + 4096-bytes from the head of the disk # + security-paranoid users can write 4096-bytes of randomness to # this device and specify mkfs=1 before rebooting into an # crypt+overlayroot setup # The result is stored in r-------- /dev/.initramfs/overlayroot.XXXXXXX, # which is a tmpfs in memory. overlayroot_cfgdisk="disabled" overlayroot="" cloud-initramfs-tools-0.25ubuntu1/overlayroot/conf-hooks.d/0000775000000000000000000000000012314372326020772 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/conf-hooks.d/overlayroot0000664000000000000000000000002412276736255023312 0ustar export CRYPTSETUP=y cloud-initramfs-tools-0.25ubuntu1/overlayroot/scripts/0000775000000000000000000000000012314372326020171 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/scripts/init-bottom/0000775000000000000000000000000012314372326022436 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/scripts/init-bottom/overlayroot0000775000000000000000000005260312207210063024745 0ustar #!/bin/sh # Copyright, 2012 Dustin Kirkland # Copyright, 2012 Scott Moser # Copyright, 2012 Axel Heider # # Based on scripts from # Sebastian P. # Nicholas A. Schembri State College PA USA # Axel Heider # Dustin Kirkland # Scott Moser # # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see # . case "$1" in # no pre-reqs prereqs) echo ""; exit 0;; esac . /scripts/functions PATH=/usr/sbin:/usr/bin:/sbin:/bin MYTAG="overlayroot" TEMP_D="${TMPDIR:-/tmp}/${0##*/}.configs" VARIABLES="overlayroot overlayroot_cfgdisk" # generic settings # ${ROOT} and ${rootmnt} are predefined by caller of this script. Note that # the root fs ${rootmnt} it mounted readonly on the initrams, which fits # nicely for our purposes. root_rw=/media/root-rw root_ro=/media/root-ro ROOTMNT=${rootmnt} # use global name to indicate created outside this OVERLAYROOT_DEBUG=0 log() { "log_${1}_msg" "$MYTAG: $2"; _debug "[$1]:" "$2" } log_fail() { log failure "$*"; } log_success() { log success "$*"; } log_warn() { log warning "$*"; } fail() { [ $# -eq 0 ] || log_fail "$@"; exit 0; # why do we exit success? } cleanup() { [ -d "${TEMP_D}" ] && rm -Rf "${TEMP_D}" } debug() { _debug "$@" [ "${OVERLAYROOT_DEBUG:-0}" = "0" ] && return echo "$MYTAG:" "$@" } _debug() { if [ "${DEBUG_BUSTED:-0}" = "0" ]; then { echo "$@" >> "/dev/.initramfs/${MYTAG}.log"; } 2>/dev/null || { DEBUG_BUSTED=1; log_warn "debug is busted"; } fi } safe_string() { local prev="$1" allowed="$2" cur="" [ -n "$prev" ] || return 1 while cur="${prev#[${allowed}]}"; do [ -z "$cur" ] && return 0 [ "$cur" = "$prev" ] && break prev="$cur" done return 1 } parse_string() { # parse a key/value string like: # name=mapper,pass=foo,fstype=ext4,mkfs=1 # set variables under namespace 'ns'. # _RET_name=mapper # _RET_pass=foo # _RET_fstype=ext4 # set _RET to the list of variables found local input="${1}" delim="${2:-,}" ns="${3:-_RET_}" local oifs="$IFS" tok="" keys="" key="" val="" set -f; IFS="$delim"; set -- $input; IFS="$oifs"; set +f; _RET="" for tok in "$@"; do key="${tok%%=*}" val="${tok#${key}}" val=${val#=} safe_string "$key" "0-9a-zA-Z_" || { debug "$key not a safe variable name"; return 1; } eval "${ns}${key}"='${val}' || return 1 keys="${keys} ${ns}${key}" done _RET=${keys# } return } get_varval() { eval _RET='${'$1'}'; } write_kernel_cmdline_cfg() { local cfg="$1" desc="${2:-kernel cmdline}" local cmdline="" var="" read cmdline < /proc/cmdline || return 1 : > "${cfg}" || return set -f { echo "desc='${desc}'" for tok in $cmdline; do for var in $VARIABLES; do if [ "$tok" = "$var" ]; then log_warn "kernel param without value '${tok}'"; continue; elif [ "${tok}" = "${var}=" ]; then echo "${var}=''"; elif [ "${tok#${var}=}" != "${tok}" ]; then echo "${var}='${tok#${var}=}'" fi done done } >> "$cfg" set +f } wait_for_dev() { local dev="$1" timeout="${2:-0}" [ -b "$dev" ] && return 0 [ "$timeout" = "0" ] && return 1 # wait-for-root writes fstype to stdout, redirect to null wait-for-root "$dev" "$timeout" >/dev/null } crypto_setup() { local fstype="ext4" pass="" mapname="secure" mkfs="1" dev="" local timeout=0 local entropy_sources="/proc/sys/kernel/random/boot_id /proc/sys/kernel/random/uuid /dev/urandom" local seed= # Seed the psuedo random number generator with available seeds for seed in "/.random-seed" "${ROOTMNT}/var/lib/urandom/random-seed"; do [ -f "${seed}" ] && cat "${seed}" > /dev/urandom || { debug "missing rng seed [${seed}]"; } done # this does necessary crypto setup and sets _RET # to the appropriate block device (ie /dev/mapper/secure) # mkfs (default is 1): # 0: never create filesystem # 1: if pass is given and mount fails, create a new one # if no pass given, create new # 2: if pass is given and mount fails, fail # if no pass given, create new local options="$1" parse_string "${options}" || { log_fail "failed parsing '${options}'"; return 1; } fstype=${_RET_fstype:-${fstype}} pass=${_RET_pass:-${pass}} mapname=${_RET_mapname:-${mapname}} mkfs=${_RET_mkfs:-${mkfs}} dev=${_RET_dev:-${dev}} timeout=${_RET_timeout:-${timeout}} [ -n "$dev" ] || { log_fail "dev= argument not provided in '${options}'"; return 1; } short2dev "$dev" || { log_fail "failed to convert $dev to a device"; return 1; } dev="${_RET}" debug "fstype=${fstype} pass=${pass} mapname=${mapname}" debug "mkfs=${mkfs} dev=${dev} timeout=${timeout}" wait_for_dev "$dev" "$timeout" || { log_fail "crypt dev device $dev does not exist after ${timeout}s"; return 1; } if [ -n "$pass" ]; then printf "%s" "$pass" | cryptsetup luksOpen "$dev" "$mapname" --key-file - if [ $? -eq 0 ]; then local tdev="/dev/mapper/$mapname" log_warn "reusing existing luks device at $dev" wait_for_dev "$tdev" 20 || { log_fail "$tdev did not appear"; return 1; } _RET_DEVICE="/dev/mapper/$mapname" return 0 fi if [ "$mkfs" != "1" ]; then log_fail "luksOpen failed on $dev with mkfs=$mkfs"; return 1; fi log_warn "re-opening $dev failed with mkfs=$mkfs will create new" else [ "$mkfs" = "0" ] && { log_fail "mkfs=0, but no password provided"; return 1; } entropy_sources="$entropy_sources $dev" local pass_file=$(mktemp /dev/.initramfs/${MYTAG}.XXXXXX) || { log_fail "failed creation of password file"; return 1; } stat -L /dev/* /proc/* /sys/* >${pass_file} 2>&1 || { log_warn "could not seed with stat entropy [$entropy_sources]"; } head -c 4096 $entropy_sources >> ${pass_file} || { log_fail "failed reading entropy [$entropy_sources]"; return 1; } pass=$(sha512sum ${pass_file}) || { log_fail "failed generation of password"; return 1; } pass=${pass%% *} printf "%s" "${pass}" > ${pass_file} fi log_warn "setting up new luks device at $dev" # clear backing device wipefs -a "$dev" || { log_fail "failed to wipe $dev"; return 1; } printf "%s" "$pass" | cryptsetup luksFormat "$dev" --key-file - || { log_fail "luksFormat $dev failed"; return 1; } printf "%s" "$pass" | cryptsetup luksOpen "$dev" "$mapname" --key-file - || { log_fail "luksOpen $dev failed"; return 1; } mke2fs -t "${fstype}" "/dev/mapper/${mapname}" || { log_fail "failed to mkfs -t $fstype on map $mapname"; return 1; } _RET_DEVICE="/dev/mapper/$mapname" return 0 } dev_setup() { local options="$1" dev="" timeout=0 path="/" # options supported: # dev=device,timeout=X,path=/ parse_string "${options}" || { log_fail "failed parsing '${options}'"; return 1; } dev=${_RET_dev:-${dev}} timeout=${_RET_timeout:-${timeout}} [ -n "$dev" ] || { log_fail "dev= argument not provided in '${options}'"; return 1; } short2dev "$dev" || { log_fail "failed to convert $dev to a device"; return 1; } dev="${_RET}" debug "dev=${dev} timeout=${timeout}" wait_for_dev "$dev" "$timeout" _RET_DEVICE="$dev" } overlayrootify_fstab() { # overlayrootify_fstab(input, root_ro, root_rw, dir_prefix, recurse, swap) # read input fstab file, write an overlayroot version to stdout # also returns (_RET) a list of directories that will need to be made local input="$1" root_ro="${2:-/media/root-ro}" local root_rw="${3:-/media/root-rw}" dir_prefix="${4:-/}" local recurse=${5:-1} swap=${6:-0} local hash="#" oline="" ospec="" upper="" dirs="" copy_opts="" local vfstypes=" proc sys tmpfs dev udev " local spec file vfstype opts pass freq line ro_line dir_prefix="${dir_prefix#/}" [ -f "$input" ] || return 1 while read spec file vfstype opts pass freq; do line="$spec $file $vfstype $opts $pass $freq" case ",$opts," in *,ro,*) ro_opts="$opts";; *) ro_opts="ro,${opts}";; esac ro_line="$spec ${root_ro}$file $vfstype ${ro_opts} $pass $freq" if [ "${spec#${hash}}" != "$spec" ] || [ -z "$freq" ]; then # line has a comment in first field, or not 6 fields echo "$line" elif [ "${vfstypes# *${vfstype} }" != "${vfstypes}" ]; then # this is a virtual filesystem, just let it through echo "${line}" elif [ "$vfstype" = "swap" ]; then if [ "$swap" = "0" ]; then # comment out swap lines echo "#overlayroot:swap=${swap}#${line}" elif [ "${spec#/}" != "${spec}" ] && [ "${spec#/dev/}" = "${spec}" ]; then # comment out swap files (spec starts with / and not in /dev) echo "#overlayroot:swapfile#${line}" else echo "${line}" fi else ospec="${root_ro}${file}" copy_opts="" [ "${opts#*nobootwait*}" != "${opts}" ] && copy_opts=",nobootwait" upper="${root_rw%/}/${dir_prefix%/}${file%/}" oline="${ospec} ${file} overlayfs " oline="${oline}lowerdir=${root_ro}${file}," oline="${oline}upperdir=${upper}${copy_opts} $pass $freq" if [ "$recurse" != "0" ]; then echo "$ro_line" echo "$oline" dirs="${dirs} ${upper}" else echo "$line" [ "$file" = "/" ] && dirs="${dirs} ${upper}" fi fi done < "$input" _RET=${dirs# } } short2dev() { # turn 'LABEL=' or 'UUID=' into a device path # also support /dev/* and 'vdb' or 'xvda' local input="$1" oifs="$IFS" dev newdev s case "$input" in LABEL=*) dev="${input#LABEL=}" case "${dev}" in */*) dev="$(echo "${dev}" | sed 's,/,\\x2f,g')";; esac dev="/dev/disk/by-label/${dev}" ;; UUID=*) dev="/dev/disk/by-uuid/${input#UUID=}" ;; /dev/*) dev="${input}";; *) dev="/dev/${input}";; esac _RET=$dev } get_cfg() { # get_cfg(device, file, cfg, timeout=0) # copy the file $cfg off $device to $file, waiting $timeout for # $device to appear local dev="$1" file="$2" cfg="${3:-overlayroot.conf}" timeout="${4:-0}" local cfgdev="" success=0 didmnt=false mp="" pre="get_cfg($dev):" [ -z "$dev" ] && return 1 if [ "$timeout" != "0" ]; then wait_for_dev "$dev" "$timeout" || { debug "$pre did not appear in $timeout"; return 1; } else udevadm settle fi short2dev "$dev" && cfgdev="$_RET" && [ -b "$cfgdev" ] || { debug "$pre not present"; return 1; } if mp="${TEMP_D}/mp" && mkdir "$mp" && mount -o ro "$cfgdev" "$mp"; then if [ -f "$mp/$cfg" ]; then cp "$mp/$cfg" "$file" && success=1 || debug "$pre copy failed" else debug "$pre '$file' file not found" fi umount "$mp" else debug "$pre mount failed" fi [ -d "$mp" ] || rmdir "$mp" [ $success -eq 1 ] || return 1 _RET="$dev/$cfg" } parse_cfg() { # parse_cfg($file,$desc,$vars) # this reasonably safely sources the "config" file $file # and then declares the variables listed to stdout # # known issues: # * sourced file could re-define 'echo' # * just fails if a value has a ' in it [ -f "$1" ] || return 0 tick="'" sh -c ' __tick=$tick __file=$1; __desc=$2; __unset__="__unset__" shift 2 __vars="$*" readonly __tick __file __desc __vars . "${__file}" if [ $? -ne 0 ]; then echo "failed source \"${__file}\" ($__desc)" 1>&2 return 1 fi set -e echo "desc=${__tick}${__desc}${__tick}" for var in ${__vars}; do eval val=\${${var}-${__unset__}} || { echo "eval of $var failed"; exit 1; } [ "${val#*${__tick}}" = "${val}" ] || { echo "variable \"$var\" had single tick in it. fail"; exit 1; } [ "${val}" = "${__unset__}" ] || echo "$var=${__tick}${val}${__tick}" done ' -- "$@" } readcfgd() { local cfg_d="$1" # this kind of stinks, each VARIABLE goes into global scope local or="" or_cfgdisk="" _RET_desc_oroot="" _RET_desc_cfgdisk="" set +f for f in "${cfg_d}"/*; do . "$f" || fail "failed reading $f" [ "$or" != "${overlayroot}" ] && _RET_desc_oroot="$desc" [ "${or_cfgdisk}" != "${overlayroot_cfgdisk}" ] && _RET_desc_cfgdisk="$desc" or=${overlayroot} or_cfgdisk=${overlayroot_cfgdisk} done set -f } fix_upstart_overlayfs() { # inotify events on an overlayfs underlay do not propogate through # a newly created overlay. This causes job creation and deletion issues # for upstart, which uses inotify on /etc/init. So ensure that the overlay # explicitly has a /etc/init (LP: #1213925) local root="$1" local initctl="$root/sbin/initctl" local eifile="/etc/init/.overlayfs-upstart-helper" [ -e "$initctl" -o -L "$initctl" ] || return 0 [ -d "$root/etc/init" ] || return 0 echo "#upstart needs help for overlayfs (LP: #1213925)." \ > "$root/$eifile" || { log_fail "failed to write $root/$eifile"; return 1; } debug "created $eifile under $root (LP: #1213925)" } cfgd="${TEMP_D}/configs" mkdir -p "${cfgd}" || fail "failed to create tempdir" trap cleanup EXIT # collect the different config locations into a file # write individual config files in $cfgd that contain { echo "desc='builtin'" echo "overlayroot=''" echo "overlayroot_cfgdisk='disabled'" } > "$cfgd/00-builtin" write_kernel_cmdline_cfg "${cfgd}/90-kernel" || fail "failed to read kernel command line!" parse_cfg "/conf/conf.d/overlayroot" "initramfs config" \ "$VARIABLES" > "${cfgd}/10-initramfs" || fail "failed parsing initramfs config" parse_cfg "${ROOTMNT}/etc/overlayroot.conf" "$ROOT/etc/overlayroot.conf" \ "$VARIABLES" > "${cfgd}/20-root-config" || fail "failed parsing root config" parse_cfg "${ROOTMNT}/etc/overlayroot.local.conf" \ "$ROOT/etc/overlayroot.local.conf" \ "$VARIABLES" > "${cfgd}/30-root-local-config" || fail "failed parsing root config" # now read the trusted configs, to see if overlayroot_cfgdisk is set readcfgd "$cfgd" || fail "reading configs failed" used_desc="${_RET_desc_oroot}" [ -n "${_RET_desc_cfgdisk}" ] && debug "${_RET_desc_cfgdisk} set cfgdisk='${overlayroot_cfgdisk}'" # if one of the trusted configs above gave us set the overlayroot_cfgdisk # variable, then look for such a device and read a config from it. cfgdisk=0 if [ "${overlayroot_cfgdisk:-disabled}" != "disabled" ] && get_cfg "${overlayroot_cfgdisk}" "${TEMP_D}/cfgdisk"; then desc=${_RET} parse_cfg "${TEMP_D}/cfgdisk" "${desc}" "$VARIABLES" \ > "${cfgd}/80-cfgdisk" || fail "reading config from ${desc} failed" used_desc="${_RET_desc_oroot}" # now read the parsed configs again. readcfgd "$cfgd" || fail "reading configs failed" [ -n "${_RET_desc_cfgdisk}" ] && debug "${_RET_desc_cfgdisk} set cfgdisk=${overlayroot_cfgdisk}" [ -n "${_RET_desc_oroot}" ] && debug "${_RET_desc_oroot} set overlayroot=${overlayroot}" fi opts="" cfgmsg="${used_desc:+ (per ${used_desc})}" case "${overlayroot:-disabled}" in tmpfs|tmpfs:*) mode="tmpfs" opts="${overlayroot#tmpfs}"; opts=${opts#:} ;; /dev/*|device:*) case "$overlayroot" in /dev/*) opts="dev=${overlayroot}";; *) opts="${overlayroot#device:}";; esac dev_setup "${opts}" || fail "failed setup overlay for ${overlayroot} [$opts]${cfgmsg}" mode="device" device="$_RET_DEVICE" ;; crypt:*) mode="crypt" opts=${overlayroot#crypt:} crypto_setup "${opts}" || fail "failed setup crypt for ${overlayroot}${cfgmsg}" device="$_RET_DEVICE" ;; disabled) debug "overlayroot disabled${cfgmsg}" exit 0;; *) fail "invalid value for overlayroot: ${overlayroot}${cfgmsg}" exit 0;; esac parse_string "$opts" "," _RET_common_ swap=${_RET_common_swap:-0} recurse=${_RET_common_recurse:-1} OVERLAYROOT_DEBUG=${_RET_common_debug:-${OVERLAYROOT_DEBUG}} dir_prefix=${_RET_common_dir:-"/overlay"} debug "swap=$swap recurse=$recurse debug=$OVERLAYROOT_DEBUG dir=$dir_prefix" debug "device=$device mode=$mode" [ "$swap" = "0" -o "$swap" = "1" ] || fail "invalid setting for swap: $swap. must be '0' or '1'" [ "$recurse" = "0" -o "$recurse" = "1" ] || fail "invalid setting for recurse: $recurse. must be '0' or '1'" log_warn "configuring overlayroot with mode=$mode opts='$opts' per $used_desc" # overlayroot_driver *could* be defined in one of the configs above # but we're not documenting that. overlayroot_driver=${overlayroot_driver:-overlayfs} # settings based on overlayroot_driver case "${overlayroot_driver}" in overlayfs) mount_type="overlayfs" mount_opts="-o lowerdir=${root_ro},upperdir=${root_rw}/${dir_prefix}" mount_opts="${mount_opts} overlayroot ${ROOTMNT}" ;; aufs) mount_type="aufs" mount_opts="-o dirs=${root_rw}/${dir_prefix}:${root_ro}=ro aufs-root ${ROOTMNT}" ;; *) log_fail "invalid overlayroot driver: ${overlayroot_driver}" panic "$MYTAG" ;; esac # check if kernel module exists modprobe -qb "${overlayroot_driver}" || fail "missing kernel module ${overlayroot_driver}" # make the mount point on the init root fs ${root_rw} mkdir -p "${root_rw}" || fail "failed to create ${root_rw}" # make the mount point on the init root fs ${root_ro} mkdir -p "${root_ro}" || fail "failed to create ${root_ro}" # mount the backing device to $root_rw if [ "$mode" = "tmpfs" ]; then # mount a tmpfs using the device name tmpfs-root mount -t tmpfs tmpfs-root "${root_rw}" || fail "failed to create tmpfs" else # dev or crypto mount "$device" "${root_rw}" || fail "failed mount backing device $device" fi mkdir -p "${root_rw}/${dir_prefix}" || fail "failed to create ${dir_prefix} on ${device}" # root is mounted on ${ROOTMNT}, move it to ${ROOT_RO}. mount --move "${ROOTMNT}" "${root_ro}" || fail "failed to move root away from ${ROOTMNT} to ${root_ro}" # there is nothing left at ${ROOTMNT} now. So for any error we get we should # either do recovery to restore ${ROOTMNT} for drop to a initramfs shell using # "panic". Otherwise the boot process is very likely to fail with even more # errors and leave the system in a wired state. # mount virtual fs ${ROOTMNT} with rw-fs ${root_rw} on top or ro-fs ${root_ro}. mount -t "$mount_type" $mount_opts if [ $? -ne 0 ]; then log_fail "failed to create new ro/rw layered ${ROOTMNT}" # do recovery and try resoring the mount for ${ROOTMNT} mount --move ${root_ro} ${ROOTMNT} if [ $? -ne 0 ]; then # thats bad, drop to shell to let the user try fixing this log_fail "RECOVERY_ERROR: failed to move $root_ro back to ${ROOTMNT}" panic "$MYTAG" fi exit 0 fi # now the real root fs is on ${root_ro} of the init file system, our # layered root fs is set up at ${ROOTMNT}. So we can write anywhere in # {ROOTMNT} and the changes will end up in ${root_rw} while ${root_ro} it # not touched. However ${root_ro} and ${root_rw} are on the initramfs root # fs, which will be removed an replaced by ${ROOTMNT}. Thus we must move # ${root_ro} and ${root_rw} to the rootfs visible later, ie. # ${ROOTMNT}${root_ro} and ${ROOTMNT}${root_ro}. Since the layered ro/rw # is already up, these changes also end up on ${root_rw} while ${root_ro} # is not touched. # move mount from ${root_ro} to ${ROOTMNT}${root_ro} mkdir -p "${ROOTMNT}/${root_ro}" mount --move ${root_ro} "${ROOTMNT}${root_ro}" || fail "failed to move ${root_ro} to ${ROOTMNT}${root_ro}" # move mount from ${root_rw} to ${ROOTMNT}${root_rw} [ -d ${ROOTMNT}${root_rw} ] || mkdir -p ${ROOTMNT}${root_rw} mount --move "${root_rw}" "${ROOTMNT}${root_rw}" || fail "failed to move ${root_rw} to ${ROOTMNT}${root_rw}" # technically, everything is set up nicely now. Since ${ROOTMNT} had beend # mounted read-only on the initfamfs already, ${ROOTMNT}${root_ro} is it, # too. Now we init process could run - but unfortunately, we may have to # prepare some more things here. # Basically, there are two ways to deal with the read-only root fs. If the # system is made aware of this, things can be simplified a lot. If it is # not, things need to be done to our best knowledge. # # So we assume here, the system does not really know about our read-only # root fs. # # Let's deal with /etc/fstab first. It usually contains an entry for the # root fs, which is no longer valid now. We have to remove it and add our # new ${root_ro} entry. # Remember we are still on the initramfs root fs here, so we have to work # on ${ROOTMNT}/etc/fstab. The original fstab is # ${ROOTMNT}${root_ro}/etc/fstab. cat <${ROOTMNT}/etc/fstab # # This fstab is in an overlayfs. The real one can be found at # ${root_ro}/etc/fstab # The original entry for '/' and other mounts have been updated to be placed # under $root_ro. # To permanently modify this (or any other file), you should change-root into # a writable view of the underlying filesystem using: # sudo overlayroot-chroot # EOF [ $? -eq 0 ] || log_fail "failed to modify /etc/fstab (step 1)" overlayrootify_fstab ""${ROOTMNT}${root_ro}/etc/fstab"" "$root_ro" \ "$root_rw" "$dir_prefix" "$recurse" "$swap" >> "${ROOTMNT}/etc/fstab" || log_fail "failed to modify /etc/fstab (step 2)" # we have to make the directories in ${root_rw} because if they do not # exist, then the 'upper=' argument to overlayfs will fail. for d in ${_RET}; do mkdir -p "${ROOTMNT}/$d" done if [ "${overlayroot_driver}" = "overlayfs" ]; then fix_upstart_overlayfs "$ROOTMNT" || log_fail "failed to fix upstart for overlayfs" fi # if / is supposed to be mounted read-only (cmdline with 'ro') # then mount our overlayfs as read-only just to be more normal read cmdline < /proc/cmdline cmdline=" $cmdline " if [ "${cmdline#* ro }" != "$cmdline" ]; then mount -o remount,ro "$ROOTMNT" || log_fail "failed to remount overlayroot read-only" debug "mounted $ROOTMNT read-only per kernel cmdline" fi msg="configured root with '$overlayroot' using ${overlayroot_driver} per" msg="$msg ${used_desc}" log_success "$msg" exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/overlayroot/hooks/0000775000000000000000000000000012314372326017625 5ustar cloud-initramfs-tools-0.25ubuntu1/overlayroot/hooks/overlayroot0000775000000000000000000000130112276736255022147 0ustar #!/bin/sh set -e PREREQS="cryptsetup" case $1 in prereqs) echo "${PREREQS}"; exit 0;; esac . /usr/share/initramfs-tools/hook-functions ## copy_exec /usr/bin/head /bin copy_exec /usr/bin/sha512sum /bin copy_exec /sbin/wipefs /sbin copy_exec /sbin/cryptsetup /sbin copy_exec /sbin/mke2fs /sbin manual_add_modules overlayfs manual_add_modules dm_mod manual_add_modules dm_crypt # this is '||' only in case this module isn't built manual_add_modules aesni_intel || true # Grab as much true random data as possible, up to 4KB, and stash it into a # random seed in the initramfs dd if=/dev/random of="${DESTDIR}/.random-seed" bs=1 count=4096 iflag=nonblock >/dev/null 2>&1 || true # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/README0000664000000000000000000000441612204437314014777 0ustar This source repository builds packages that work with initramfs-tools to add function to an initramfs that is likely cloud specific. Most likely, you do not want to install these packages unless you know what you're doing. == growroot == This initramfs module will re-write the partition table of a disk so that the root partition has as much space as possible, bumping it up to the edge of the disk, or the edge of the next partition. This is valueable in an environment where a volume can be grown past its original size. It addresses the following situation: * The initial [virtual] disk has a partition table on it * The provisioning system creates a volume with additional space at the end of the disk (after the root partition) * the system boots, but cannot use the additional space without a reboot because the kernel will not re-read the partition table information of a disk that is in use. The way this is addressed is: * in the initramfs unmount the root filesystem * rewrite the partition table * tell the kernel to re-read * remount the root filesystem == rescuevol == When installed the initramfs will check to see if any partitions with a label of 'RESCUE_VOL' are attached. If such a volume is attached, it will boot off that volume rather than the root volume. This is useful in a cloud environment, when the user is able to attach and detach volumes to a running system, but has no other mechanism for interupting of fixing a failed boot. It is analogous to inserting a rescue CD into a system to recover from failure. It may be helpful in the case where the kernel and ramdisk can be loaded from the instance, but the system is unusable. This could occur if an error left ssh access broken or the system didn't come all the way up. The user could attach a correctly labeled volume, reboot the instance and access the system to fix it. If the volume contains a file '/etc/rescuevol-ignore' it will be ignored. This allows you to fix your instance, create that volume and *not* boot the rescue volume on next boot == overlayroot == Configure overlayfs filesystems over the root device based on configuration provided by kernel command line or in-image config. see overlayroot/etc/overlayroot.conf for more information. == dyn-netconf == see dyn-netconf/doc/README.txt cloud-initramfs-tools-0.25ubuntu1/debian/0000775000000000000000000000000012314372326015337 5ustar cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-dyn-netconf.postinst0000664000000000000000000000021312204437314024457 0ustar #!/bin/sh set -e case "$1" in configure) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/source/0000775000000000000000000000000012314372326016637 5ustar cloud-initramfs-tools-0.25ubuntu1/debian/source/format0000664000000000000000000000001512204437314020043 0ustar 3.0 (native) cloud-initramfs-tools-0.25ubuntu1/debian/docs0000664000000000000000000000000712204437314016204 0ustar README cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-dyn-netconf.install0000664000000000000000000000017412207206036024246 0ustar usr/share/initramfs-tools/hooks/cloud-initramfs-dyn-netconf usr/share/initramfs-tools/scripts/*/cloud-initramfs-dyn-netconf cloud-initramfs-tools-0.25ubuntu1/debian/changelog0000664000000000000000000002202112314371634017207 0ustar cloud-initramfs-tools (0.25ubuntu1) trusty; urgency=medium * cloud-initramfs-copymods: Add new package that is useful if you're booting kernel/initramfs that live external to the root filesystem. -- Scott Moser Tue, 25 Mar 2014 17:22:34 -0400 cloud-initramfs-tools (0.24ubuntu1) trusty; urgency=medium * overlayroot: package conf-hooks.d/overlayroot which was previously not included in the package. -- Scott Moser Wed, 12 Feb 2014 13:31:57 -0500 cloud-initramfs-tools (0.23ubuntu1) trusty; urgency=low [ Dimitri John Ledkov ] * modify overlayroot config to export CRYPTSETUP=yes so that crypto modules are included by cryptsetup. (LP: #1267225) -- Scott Moser Wed, 05 Feb 2014 15:13:58 +0200 cloud-initramfs-tools (0.22ubuntu1) trusty; urgency=medium * correctly identify partition and block device for devices named like devnameXpN, such as mmcblk0p1 (LP: #1236380). * always include aesni_intel rather than doing it if there is cpu support (LP: #1267225). -- Scott Moser Mon, 03 Feb 2014 22:09:00 +0200 cloud-initramfs-tools (0.21ubuntu2) trusty; urgency=low * Fix Makefile to avoid FTBS caused by subdir in overlayroot/etc Makefile now takes into account when subdirectories are present in the overlayroot directory. -- Louis Bouchard Thu, 02 Jan 2014 03:26:22 +0000 cloud-initramfs-tools (0.21ubuntu1) trusty; urgency=low * === added directory overlayroot/etc/update-motd.d, debian/overlayroot.install, overlayroot/etc/update-motd.d/97- overlayroot: - add an update-motd message, when booted in an overlayroot environment -- Dustin Kirkland Fri, 15 Nov 2013 12:05:58 -0600 cloud-initramfs-tools (0.20ubuntu1) saucy; urgency=low * debian/control: depend on cloud-utils or cloud-guest-utils. * overlayroot: include a fix for creating /etc/init in overlay so inotify works correctly. -- Scott Moser Tue, 27 Aug 2013 16:48:53 -0400 cloud-initramfs-tools (0.19ubuntu1) raring; urgency=low * cloud-initramfs-growroot: support growpart exit status of '1' indicating "no-change-necessary" * cloud-initramfs-dyn-netconf: run at init-premount rather than init-top to ensure that 'load_modules' has been run and udev is running (LP: #1116426) -- Scott Moser Tue, 05 Feb 2013 16:49:23 -0500 cloud-initramfs-tools (0.18-ubuntu1) quantal; urgency=low * add cloud-initramfs-dyn-netconf package. * support replacing 'BOOTIF' in an 'ip' kernel cmdline parameter with the actual interface name (ip=:::::BOOTIF => ip=::::eth0) (LP: #1046405) * support writing network-interfaces style file for any devices configured via 'ipconfig' in the kernel (LP: #1053190). -- Scott Moser Mon, 01 Oct 2012 13:12:22 -0400 cloud-initramfs-tools (0.17-0ubuntu1) quantal; urgency=low * disable searching for config disk by default (LP: #1034116) * make config disk device configurable * support reading /etc/overlayroot.local.conf for local configuration -- Scott Moser Tue, 28 Aug 2012 22:08:27 -0400 cloud-initramfs-tools (0.16-0ubuntu1) quantal; urgency=low * overlayroot/scripts/init-bottom/overlayroot: - lower missing rng seed to a debug -- Dustin Kirkland Wed, 01 Aug 2012 11:36:25 -0500 cloud-initramfs-tools (0.15-0ubuntu1) quantal; urgency=low * overlayroot/etc/overlayroot.conf, overlayroot/scripts/init- bottom/overlayroot: - add a bit more unpredictability/entropy to our key generation - use the stat output of all of /dev/* /proc/* /sys/* - document that -- Dustin Kirkland Tue, 31 Jul 2012 16:45:10 -0500 cloud-initramfs-tools (0.14-0ubuntu1) quantal; urgency=low [ Scott Moser ] * overlayroot/etc/overlayroot.conf: - fix name of password file * overlayroot/hooks/overlayroot: - mktemp is already in busybox [ Dustin Kirkland ] * debian/control: - lower haveged to a suggests, until its MIR is approved -- Dustin Kirkland Tue, 31 Jul 2012 11:00:15 -0500 cloud-initramfs-tools (0.13-0ubuntu1) quantal; urgency=low * overlayroot/scripts/init-bottom/overlayroot: - stash generated password in tmpfs in /dev/.initramfs * debian/control, overlayroot/etc/overlayroot.conf, overlayroot/hooks/overlayroot, overlayroot/scripts/init- bottom/overlayroot: - drop pwgen dependency - use a new algorithm for generating cryptsetup passphrase - document that in the config file - need a few new executables in ramfs (head, sha512sum, mktemp) - write the randomly generated cryptsetup passphrase to a root-only-readable file in tmpfs * debian/control, overlayroot/hooks/overlayroot, overlayroot/scripts/init-bottom/overlayroot: - depend on haveged for additional entropy - grab up to 4KB of entropy from /dev/random and stash it into a seed in the initramfs - load the initramfs seed and the urandom boot seed into urandom (borrowed from the /etc/init.d/urandom script) -- Dustin Kirkland Fri, 27 Jul 2012 14:57:42 -0500 cloud-initramfs-tools (0.12-0ubuntu1) quantal; urgency=low [ Scott Moser ] * overlayroot: * fix recursive mounts * add debug= parameter * make dir= a valid parameter for overlayroot=tmpfs -- Dustin Kirkland Thu, 26 Jul 2012 17:09:20 -0500 cloud-initramfs-tools (0.11-0ubuntu1) quantal; urgency=low [ Scott Moser ] * debian/cloud-initramfs-overlayroot.{install,postinst,postrm}: rename so dh gets the right packaged files * overlayroot/etc/overlayroot.conf, overlayroot/scripts/init-bottom/overlayroot: * add recursive readonly mounts. Enable this by default. * add parameter 'swap' to control if swap is to be enabled. swap defaults to disabled. * add support for identifying device by LABEL= or UUID= * debian/control: * remove overlayfs dependency on cloud-utils and util-linux -- Dustin Kirkland Tue, 24 Jul 2012 20:05:33 -0500 cloud-initramfs-tools (0.10-0ubuntu1) quantal; urgency=low * debian/control: - simplify the name of the binary package to just "overlayroot" -- Dustin Kirkland Mon, 23 Jul 2012 09:38:44 -0500 cloud-initramfs-tools (0.9-0ubuntu1) quantal; urgency=low * debian/control: - add a binary metapackage, overlayroot, which is a lot less wordy than cloud-initramfs-overlayroot - this functionality is not actually cloud-specific -- Dustin Kirkland Sat, 21 Jul 2012 11:08:57 -0500 cloud-initramfs-tools (0.8-0ubuntu1) quantal; urgency=low * overlayroot/etc/overlayroot.conf, overlayroot/scripts/init- bottom/overlayroot: - default to ext4, much faster to format when doing this dynamically -- Dustin Kirkland Fri, 20 Jul 2012 17:57:21 -0500 cloud-initramfs-tools (0.7-0ubuntu1) quantal; urgency=low [ Scott Moser ] * overlayroot/scripts/init-bottom/overlayroot: - fix race condition, waiting for crypt filesystem to map - use wait loop -- Dustin Kirkland Fri, 20 Jul 2012 17:47:48 -0500 cloud-initramfs-tools (0.6-0ubuntu1) quantal; urgency=low * debian/control, debian/README.source: - update upstream location of project * debian/copyright: - update copyrights -- Dustin Kirkland Fri, 20 Jul 2012 17:00:19 -0500 cloud-initramfs-tools (0.5ubuntu1) quantal; urgency=low [ Dustin Kirkland ] * Add support for an overlayroot binary package - adds overlayfs support on top of a read only root with an optional backing device that can optionally be encrypted - include overlay-chroot utility with man page. [ Scott Moser ] * debian/control: set standards version to 3.9.3 -- Dustin Kirkland Fri, 20 Jul 2012 16:07:18 -0500 cloud-initramfs-tools (0.4ubuntu1) precise; urgency=low * growroot: run 'udevadm settle' before attempting growpart to allow initial events to finish (LP: #937352) -- Scott Moser Thu, 23 Feb 2012 22:19:20 -0500 cloud-initramfs-tools (0.3ubuntu1) precise; urgency=low * growroot: unmount root before attempting to grow the root partition (LP: #906722). -- Scott Moser Tue, 20 Dec 2011 13:24:45 -0500 cloud-initramfs-tools (0.2ubuntu1) oneiric; urgency=low * invoke blkid to search for the rescue volume rather than relying on /dev/disk/by-label/LABEL . The by-label entries would sometimes not exist while the device would. * improve failed boot message * update debian/README.source to point at upstream location [Neil Wilson] * fix race condition that resulted in intermittent mount failures after 'growroot'. (LP: #765843) -- Scott Moser Wed, 08 Jun 2011 09:46:57 -0400 cloud-initramfs-tools (0.1ubuntu1) natty; urgency=low * Initial Release (LP: #725127). -- Scott Moser Fri, 25 Feb 2011 12:44:03 -0500 cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-rescuevol.postinst0000664000000000000000000000021312204437314024242 0ustar #!/bin/sh set -e case "$1" in configure) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/copyright0000664000000000000000000000236012207206036017266 0ustar Format: http://dep.debian.net/deps/dep5 Upstream-Name: cloud-initramfs-tools Files: * Copyright: 2011 Scott Moser License: GPL-3.0+ This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. . This package is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. . You should have received a copy of the GNU General Public License along with this program. If not, see . . On Debian systems, the complete text of the GNU General Public License version 3 can be found in "/usr/share/common-licenses/GPL-3". Files: debian/* overlayroot/scripts/init-bottom/overlayroot Copyright: 2011 Scott Moser License: GPL-3.0+ Files: debian/*overlayroot* overlayroot/* Copyright: 2012 Dustin Kirkland License: GPL-3.0+ Files: overlayroot/scripts/init-bottom/overlayroot Copyright: 2012 Axel Heider License: GPL-3.0+ cloud-initramfs-tools-0.25ubuntu1/debian/rules0000775000000000000000000000025312204437314016414 0ustar #!/usr/bin/make -f # Uncomment this to turn on verbose mode. #export DH_VERBOSE=1 # This has to be exported to make some magic below work. export DH_OPTIONS %: dh $@ cloud-initramfs-tools-0.25ubuntu1/debian/overlayroot.postinst0000664000000000000000000000021312204437314021522 0ustar #!/bin/sh set -e case "$1" in configure) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-copymods.postrm0000664000000000000000000000021712314371260023534 0ustar #!/bin/sh set -e case "$1" in remove|purge) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/README.source0000664000000000000000000000047012204437314017514 0ustar cloud-initramfs-tools for Debian -------------------------------- This package is maintained as a ubuntu native package, and revision controlled using bzr. The Upstream for this package is available at: lp:cloud-initramfs-tools https://code.launchpad.net/~cloud-initramfs-tools/cloud-initramfs-tools/trunk cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-rescuevol.install0000664000000000000000000000013012207206036024021 0ustar usr/share/initramfs-tools/hooks/rescuevol usr/share/initramfs-tools/scripts/*/rescuevol cloud-initramfs-tools-0.25ubuntu1/debian/overlayroot.install0000664000000000000000000000037212276737271021331 0ustar etc/overlayroot.conf etc/update-motd.d usr/sbin/overlayroot-chroot usr/share/initramfs-tools/hooks/overlayroot usr/share/initramfs-tools/scripts/*/overlayroot usr/share/initramfs-tools/conf-hooks.d/overlayroot usr/share/man/man8/overlayroot-chroot.8 cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-growroot.install0000664000000000000000000000012612207206036023701 0ustar usr/share/initramfs-tools/hooks/growroot usr/share/initramfs-tools/scripts/*/growroot cloud-initramfs-tools-0.25ubuntu1/debian/overlayroot.postrm0000664000000000000000000000021712204437314021167 0ustar #!/bin/sh set -e case "$1" in remove|purge) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-rescuevol.postrm0000664000000000000000000000021612204437314023706 0ustar #!/bin/sh set -e case "$1" in remove|purge) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-dyn-netconf.postrm0000664000000000000000000000021712204437314024124 0ustar #!/bin/sh set -e case "$1" in remove|purge) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-growroot.postinst0000664000000000000000000000021312204437314024115 0ustar #!/bin/sh set -e case "$1" in configure) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-copymods.postinst0000664000000000000000000000021312314371260024067 0ustar #!/bin/sh set -e case "$1" in configure) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/debian/control0000664000000000000000000000636012314371260016743 0ustar Source: cloud-initramfs-tools Section: admin Priority: extra Maintainer: Scott Moser Build-Depends: debhelper (>= 7.0.50~) Standards-Version: 3.9.3 Homepage: http://launchpad.net/cloud-initramfs-tools Vcs-Bzr: http://code.launchpad.net/~cloud-initramfs-tools/cloud-initramfs-tools/trunk Package: cloud-initramfs-rescuevol Architecture: all Depends: initramfs-tools, ${misc:Depends}, ${shlibs:Depends} Description: boot off a rescue volume rather than root filesystem This package adds functionality to an initramfs built by initramfs-tools. When installed the initramfs will check to see if any partitions with a label of 'RESCUE_VOL' are attached. If such a volume is attached, it will boot off that volume rather than the root volume. . This is useful in a cloud environment, when the user is able to attach and detach volumes to a running system, but has no other mechanism for interupting of fixing a failed boot. It is analogous to inserting a rescue CD into a system to recover from failure. Package: cloud-initramfs-growroot Architecture: all Depends: cloud-utils (>= 0.21ubuntu1) | cloud-guest-utils, initramfs-tools, util-linux (>= 2.17.2), ${misc:Depends}, ${shlibs:Depends} Description: automatically resize the root partition on first boot This package adds functionality to an initramfs built by initramfs-tools. When installed, the initramfs will repartition a disk to make the root volume consume all space that follows it. . You most likely do not want this package unless you know what you are doing. It is primarily interesting in a virtualized environment when a disk can provisioned with a size larger than its original size. In this case, with this package installed, you can automatically use the new space without requiring a reboot to re-read the partition table. Package: overlayroot Architecture: all Depends: cryptsetup, cryptsetup-bin, initramfs-tools, ${misc:Depends}, ${shlibs:Depends} Suggests: haveged Description: use an overlayfs on top of a read-only root filesystem This package adds functionality to an initramfs built by initramfs-tools. When installed and configured, the initramfs will mount an overlayfs filesystem on top of a read-only root volume. . The changes can be written to a in-memory temporary filesystem, a filesystem on an existing block device, or a dmcrypt encrypted block device. Package: cloud-initramfs-dyn-netconf Architecture: all Depends: initramfs-tools, ${misc:Depends}, ${shlibs:Depends} Description: write a network interface file in /run for BOOTIF This package provides an initramfs module that will write a simple network interfaces formated file to /run/network/interfaces with entries for any devices that were configured during initramfs. Package: cloud-initramfs-copymods Architecture: all Depends: initramfs-tools, ${misc:Depends}, ${shlibs:Depends} Description: copy initramfs modules into root filesystem for later use When booting with an external-to-root kernel and initramfs, you need to ensure that /lib/modules contains any necessary modules not already loaded. . This package arranges for the modules in the initramfs to be placed into /lib/modules after the switchroot is done. cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-copymods.install0000664000000000000000000000012612314371260023655 0ustar usr/share/initramfs-tools/hooks/copymods usr/share/initramfs-tools/scripts/*/copymods cloud-initramfs-tools-0.25ubuntu1/debian/compat0000664000000000000000000000000212204437314016532 0ustar 7 cloud-initramfs-tools-0.25ubuntu1/debian/cloud-initramfs-growroot.postrm0000664000000000000000000000021712204437314023562 0ustar #!/bin/sh set -e case "$1" in remove|purge) dpkg-trigger update-initramfs;; *) exit 0;; esac #DEBHELPER# exit 0 # vi: ts=4 noexpandtab cloud-initramfs-tools-0.25ubuntu1/rescuevol/0000775000000000000000000000000012314372326016124 5ustar cloud-initramfs-tools-0.25ubuntu1/rescuevol/scripts/0000775000000000000000000000000012314372326017613 5ustar cloud-initramfs-tools-0.25ubuntu1/rescuevol/scripts/local-premount/0000775000000000000000000000000012314372326022554 5ustar cloud-initramfs-tools-0.25ubuntu1/rescuevol/scripts/local-premount/rescuevol0000664000000000000000000000375712204437314024517 0ustar #!/bin/sh RESCUE_LABEL="RESCUE_VOL" UMOUNT="" get_dev_by_label() { local label=${1} dev="" dev=$(blkid -c /dev/null -w /dev/null -l -o device \ -t "LABEL=${label}") || return 1 [ -n "${dev}" -a -e "${dev}" ] || return 1 _RET=${dev} } hasvol() { local dev="" mp="" label=${1} myinit="${2}" get_dev_by_label "$label" || return 1 dev=${_RET} mount -o ro "${dev}" "${MP}" && UMOUNT="${MP}" || { echo "${dev} existed, but mount failed"; return 1; } mp=${MP} # the presense of file /etc/rescuevol-ignore in the target indicates # that we should not use it. [ -e "${mp}/etc/rescuevol-ignore" ] && { echo "ignoring rescue volume labeled '${label}' due to /etc/rescuevol-ignore"; return 1; } # if /sbin/rescuevol-init exists, then use it rather than /sbin/init [ -e "${mp}/sbin/rescuevol-init" ] && myinit="/sbin/rescuevol-init" _RET_DEV=${dev} _RET_INIT=${myinit} } mountfail() { local vol="" label=${1} get_dev_by_label "$label" && vol=${_RET} if [ "${ROOT}" = "${vol}" ]; then echo "**** Failed to mount rescue volume ${vol} ! *****" else cat < /conf/param.conf <